Autoradiogram of Southern hybridization. Genes BBGP, Gsp, Pina, and Pinb as indicated at the left and accession numbers at the top. ‘Red Egyptian’, ‘Sea Island’, and ‘Komar’ are hard red cultivars of common wheat (T. aestivum); accessions TA2610, PI355352, and PI355353 belong to T. zhukovskyi. BGGP and Gsp each detected two fragments in ‘Red Egyptian’ and three in ‘Sea Island’ and ‘Komar’, whereas Pina and Pinb did not detect any signal in all three wheat cultivars. In T. zhukovskyi, BGGP and Gsp detected two bands with similar intensity and Pina and Pinb detected a single fragment.